Answer:
(-2/3) (5/4) = -5/6
Answer:
Step-by-step explanation:
(-2/3) x (5/4) =
multiply the numerators together, then multiply then denominators together (as normal) to get:
-10/12
then simplify to:
-5/6
hope that helps :)
The ratio of girls to boys in a class is 3:2. There are 25 students in this class. How many are girls and how many are boys?
A leaf falls from the branch that is 24 feet high at a rate of 5 feet every 2 seconds. How high (relative to the ground) is the leaf after 3 seconds?
Answer:
16.5
Step-by-step explanation:
5 ft every 2 seconds= 2.5 ft per second 3 seconds= 7.5ft
24-7.5=16.5
I need this answered tysm if you do
Maria found a shirt for $18.90, a pair of jeans for $21, and a pair of shorts for $14.25. She bought the shirt and shorts. If she paid with a $50 bill, how much change did she get?
Answer:
$16.85
Step-by-step explanation:
since Maria is only buying the shirts and shorts you would add how much this shirt is and how much the shorts are and then subtract that by 50
A car costs $3,500 and costs $4 in gas to drive fifteen miles. If another car costs $4,500 but only need $2 in gas to drive fifteen miles, after how many miles of driving would be the total cost of driving both cars be equal?
Answer:
500 miles
Step-by-step explanation:
Step one:
A car costs $3,500 and costs $4 in gas to drive fifteen miles
let the total cost be y and let the number of miles be x
y= 3500+4x-----------1
If another car costs $4,500 but only need $2 in gas to drive fifteen miles,
let the total cost be y and let the number of miles be x
y= 4500+2x----------------2
Step two:
Equate the two expressions for the total cost
3500+4x=4500+2x
solve for x
4x-2x=4500-3500
2x= 1000
divide both sides by 2
x= 1000/2
x= 500 miles
find exterior angle
Answer:
∡3 = 142°
Step-by-step explanation:
28° + 10° + ∡3 = 180° (Sum of angles in a triangle)
38° + ∡3 = 180°
∡3 = 180° - 38°
∡3 = 142°
Alternate method:
38° + ∡3 = 180° (Sum of angles on a straight line)
∡3 = 180° - 38°
∡3 = 142°
Answer:
38 degree + 180 degree = [ sum of angle on a straight line]
3= 180 degree - 38 degree
3= 142 degree.
·
Can some help me fast!
Answer:
5x +2y =38
5(6) +2y = 38
30 +2y= 38
2y= 8
y= 4
(6, 4)
5(0) +2y =38
2y= 38
y= 19
(0,19)
5(-2) +2y= 38
-10 +2y =38
2y= 48
y=24
(-2,24)
Write an equation in point-slope form of the line that passes through the point (3,-5) and has a slope of 2.
Answer:
Y=2x-11
Step-by-step explanation:
James drives a distance of 320 miles in 4 hours. What was his speed?
A. 80 mi/min
B. 80 mi/hr²
C. 80 km/hr
D. 80 mi/hr
Answer: D
Step-by-step explanation:
because 320/4 = 80 mi/hr because it can not km or min and hr^2 would not make any sense
James will cover 320 miles in 4 hours with the speed of 80 miles/hour.
What is speed?
Speed is the distance traveled per unit of time. The speed is given by distance/time.
What will be the speed of James?The distance travelled by James is 320 miles in 4 hours.
Divide distance by time to get the speed of James.
320/4=80.
The unit of distance was miles and of time was hour so the unit of speed will be miles/hour.
Therefore, the speed of James will be 80 miles/hour which is option D.
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Use distributive property to rewrite
1. 4(x + 9)
2. 3 (-2x + 4)
1. 4x+36
2. -6x+12
and aww your pfp
In the diagram above, <4 = x+30 and
<2 = 2x+15. Find the measure of <4.
<4 = [?]°
Answer:x=15 so 4=45
Step-by-step explanation:
Answer: x=15 and 4=45
Step-by-step explanation:
if I travel 10 miles in a north-east direction, how far to the east did I travel? How far to the north?
Answer:
I'm not sure what the answer is but I will tell you when I find out
Acids are described as corrosive because they
1 . taste bitter.
“ 2. eat away” at other materials.
3. turn litmus blue. and help with this Which is a characteristic property of acids? 1.They do not react with metals.
2 .They turn blue litmus paper red.
3.They turn red litmus paper blue. and tysm have a good day but answer both to get brainest
Answer:
2 eat away
Step-by-step explanation:
1 they do not react with metals
have a nice day
Two friends, Jordan and Nicole, took summer jobs. Nicole earned $208.80 in 8 hours. The table below represents Jordan's earnings in dollars and cents, y, for working x hours.
26.1 would be your answer, i THINK. considering you didn't add the table ;-;
Answer:$29.60
Step-by-step explanation:
The table below shows Nicole's earnings on the job.
\text{Time (hours)}Time (hours) \text{Earnings (dollars)}Earnings (dollars)
1010 \$296$296
2222 \$651.20$651.20
2424 \$710.40$710.40
\text{What is Nicole's rate of pay, in dollars per hour?}
What is Nicole’s rate of pay, in dollars per hour?
\text{Rate}=
Rate=
\,\,\frac{\text{Dollars}}{\text{Hours}}
Hours
Dollars
\text{Rate}=
Rate=
\,\,\frac{296}{10}
10
296
\text{Rate}=
Rate=
\,\,29.6
29.6
\text{We get the same rate of pay for every pair:}
We get the same rate of pay for every pair:
\text{Time (hours)}Time (hours) \text{Earnings (dollars)}Earnings (dollars) \text{Rate}Rate
1010 \$296$296 \frac{\$296}{10}=29.6
10
$296
=29.6
2222 \$651.20$651.20 \frac{\$651.20}{22}=29.6
22
$651.20
=29.6
2424 \$710.40$710.40 \frac{\$710.40}{24}=29.6
24
$710.40
=29.6
\text{Nicole's rate of pay is \$29.60 per hour.}
Nicole’s rate of pay is $29.60 per hour.
This is the same as the constant of proportionality between earnings and time.
Molly is excited to have fresh basil at home. She buys a basil plant that is 90 millimeters tall and puts it on her kitchen windowsill. A month later, the plant is 20 centimeters taller! One night, Molly wants to add some basil to her stir-fry, so she cuts off 12 centimeters. How many centimeters tall is her basil plant now?
(I'm really sorry if I'm asking to much I have some assignments which are hard please help me)
Answer:
Molly's basil plant is now 17 centimeters
Step-by-step explanation:
90 millimeters=9 centimeters
20cm-12cm=8cm
9cm+8cm=17cm
hope this helped :)
Which explicit and recursive formulas match the geometric sequence 5, 15, 45, 135...?
Answer:
155
Step-by-step explanation:
because he's skipping
-35-490 ÷7+12 PLEASE I NEED HELP URGENT
Answer:
-93
Step-by-step explanation:
-35-490 ÷7+12
= -35-(490 ÷7)+12
= (-35-70)+12
= -105 + 12
= -93
in the simplest terms that is equivalent to 2 1/3
Answer:
IRREGULAR TERM OF FRACTIONS
Step-by-step explanation:
2 1/3
= 7/3 ANSWER
Solve for x
X ÷ 39 = 1204 R38
Answer:
46994
Step-by-step explanation:
x ÷ 39 = 1204 + 38
x ÷ 39 = 1204 + 38
x ÷ 39 = 1242
x ÷ 39 × 39 = 1242 × 39
x = 46994
Describe how you know that (8 + 9) + 3 is
equivalent to 8 + (9 + 3). What is the benefit
to using this property?
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
(8 + 9) + 3 is equivalent to 8 + (9 + 3) using the property of associative.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
(8 + 9) + 3 = 17 + 3 = 20
8 + (9 + 3) = 8 + 12 = 20
This is the property of associative.
Thus,
(8 + 9) + 3 is equivalent to 8 + (9 + 3) using the property of associative.
Learn more about expressions here:
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Who can help me with this?
Answer:
4^2
Step-by-step explanation:
4^-3 × 4^5
= 0.015625 × 1024
= 16
=4^2
Answer:
4²
Step-by-step explanation:
When multiplying the same base to raised to different exponents, all you need to do is add the exponents.
[tex]4^{-3} * 4^5\\= 4^{(-3 + 5)}\\= 4^2\\[/tex]
c.)
18-2x² when x = -3
Answer:
0
Step-by-step explanation:
First, we plug in the -3 into the equation:
18 - 2(-3)^2
0
Examine the numbers listed below. Identify the only number that might be prime. Explain how you know that the other numbers are composite.
Answer:
im not sure (dont take this down plz) but i think it is 2175 bc i dont belive there are not more then two or three ways to get that #
The soccer team is selling tubs of cookie dough and brownie mix for a fundraiser. Elaina raised $75 by selling one tub of cookie dough and five tubs of brownie mix. Meghan raised $141 by selling three tubs of cookie dough and eight tubs of brownie mix. How much is a tub of brownie mix?
Step-by-step explanation:
Someone answered another question of this. In simple words the answer is 12 dollars.
i need help someone pls solve this for me
Answer:
The answer is below
Step-by-step explanation:
1) Let x represent the price of Tacos and y represent the price of Burrito. You where charged $4.80, hence:
2x + 2y = 4.80; Dividing through by 2:
x + y = 2.4 (1)
Your friend was charged $4.00, hence:
3x + y = 4.00 (2)
Solving equation 1 and 2 simultaneously by subtracting equation 2 from equation 1:
2x = 1.6
x = 0.80
Put x = 0.8 in equation 1:
0.8 + y = 2.4
y = 1.60
The cost of each tacos is $0.80 and the cost for each burritos is $1.60
2) Let x represent the smaller number and y the bigger number, hence:
y - x = 16 (1)
Also:
y = 4x - 5;
y - 4x = -5 (2)
Subtract equation 2 from equation 1 to solve simultaneously:
3x = 21
x = 7
Put x = 7 in equation 1:
y - x = 16
y - 7 = 16
y = 23
The greater number is 23 and the smaller number 7
Jamal is stacking boxes of books for the library book sale. Each box contains 24 books. If the stack of boxes is
in the shape of a square-based pyramid, how many books total will there be in a stack of 4 layers?
a. 30
b. 336
c. 28
d. 720
Answer: it should be 720
Step-by-step explanation:
BRAINLIEST FOR WHOEVER GETS THIS RIGHT!!!
Answer:
56*a234 =123
a×829
h=234*234*56=2893
Find the missing side in the right triangle, Round to the nearest tenth.
please help
Answer:
17.0
Step-by-step explanation:
right angle with angles 45, 45 and 90
SOHCAHTOA
cos 45 = A/H
Cos 45 = 12/r
r= 12/cos 45
r= 16.97
HELPPPP PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
coordinate plane with segments AB and A prime B prime with points L, M, N, and O at A 1 comma 2, B 1 comma negative 1, A prime 3 comma 2, B prime 3 comma negative 4, L negative 1 comma 4, M negative 1 comma 2, N negative 1 comma 0, and O negative 1 comma negative 2 segment AB was dilated by scale factor of 2 to create segment A prime B prime. Which point is the center of dilation? O N M L
Answer:(03.01 LC)
coordinate plane with segments AB and A prime B prime with points L, M, N, and O at A 1 comma 2, B 1 comma negative 1, A prime 3 comma 2, B prime 3 comma negative 4, L negative 1 comma 4, M negative 1 comma 2, N negative 1 comma 0, and O negative 1 comma negative 2
segment AB was dilated by scale factor of 2 to create segment A prime B prime.
Which point is the center of dilation? (1 point)
L
M
N
O
Step-by-step explanation:
To find the center of dilation, plot a line between the corresponding points of the pre-image and the image. First, plot a line through A and A'. Then, plot a line through B and B'.
Answer is M
Which equation is correct?
–14.-2 = -28
-14.-2 = 28
14. -2 = 28
14 -2 = -28